class Settings:
    # 存储游戏所有的设置类
    def __init__(self):
        # 屏幕设置
        self.screen_width = 1200
        self.screen_height = 800
        self.bg_color = (230, 230, 230)

        # 子弹设置
        self.bullet_speed_factor = 3
        self.bullet_width = 1200
        self.bullet_height = 15
        self.bullet_color = 60,60,60
        self.bullets_allowed = 3

        # 外星人设置
        self.alien_speed_factor = 1
        self.fleet_drop_speed = 10
        # fleet_direction为1表示向右移，为-1表示向左移
        self.fleet_direction = 1

        # 飞船设置
        self.ship_speed_factor = 1.5
        # 飞船可以复活的机会（玩家一共可以玩多少次）
        self.ship_limit = 3

        # 以什么样的速度加快游戏节奏
        self.speedup_scale = 1.1

        self.initialize_dynamic_settings()


    def initialize_dynamic_settings(self):
        """初始化随游戏进行而变化的设置"""
        self.ship_speed_factor = 1.5
        self.bullet_speed_factor = 3
        self.alien_speed_factor = 1

        # fleet_direction 为1 表示向右，为-1 表示向左
        self.fleet_direction = 1

        # 分值，击落一个外星人得分
        self.alien_points = 50
        self.score_scale = 1.5

    def increase_speed(self):
        """提高速度设置"""
        self.ship_speed_factor *= self.speedup_scale
        self.bullet_speed_factor *= self.speedup_scale
        self.alien_speed_factor *= self.speedup_scale
        self.alien_points = int(self.alien_points * self.score_scale)
